
import axios from "axios";
import appConfig from '../envconfig';
import { getToken } from './auth';
import errorCode from './errorCode';
import { ElMessage, ElMessageBox, ElNotification,} from 'element-plus';

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8';

// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: appConfig["server-host"],
  // 超时
  timeout: 10000
});

// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false;
  if (getToken() && !isToken) {
    config.headers['Authorization'] = getToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?';
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName];
      const part = encodeURIComponent(propName) + "=";
      if (value !== null && typeof value !== "undefined") {
        if (typeof value === 'object') {
          for (const key of Object.keys(value)) {
            if (value[key] !== null && typeof value[key] !== 'undefined') {
              const params = propName + '[' + key + ']';
              const subPart = encodeURIComponent(params) + '=';
              url += subPart + encodeURIComponent(value[key]) + '&';
            }
          }
        } else {
          url += part + encodeURIComponent(value) + "&";
        }
      }
    }
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  return config;
}, error => {
  console.log(error);
  Promise.reject(error);
});

// 响应拦截器
service.interceptors.response.use(res => {
  // 未设置状态码则默认成功状态
  const code = res.data.code || 200;
  // 获取错误信息
  const msg = errorCode[code] || res.data.msg || errorCode['default'];
  if (code === 401) {
    ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
      confirmButtonText: '重新登录',
      cancelButtonText: '取消',
      type: 'warning'
    }
    ).then(() => {
      // store.dispatch('LogOut').then(() => {
      //   location.href = '/index';
      // });
    }).catch((err) => {
      console.log(err);
    });
    return Promise.reject('令牌验证失败');
  } else if (code === 500) {
    ElMessage({
      message: msg,
      type: 'error'
    });
    return Promise.reject(new Error(msg));
  } else if (code !== 200) {
    ElNotification({
      type: 'error',
      title: msg
    });
    return Promise.reject('error');
  } else {
    return res.data;
  }
},
error => {
  console.log('err' + error);
  let { message } = error;
  if (message === "Network Error") {
    message = "后端接口连接异常";
  }
  else if (message.includes("timeout")) {
    message = "系统接口请求超时";
  }
  else if (message.includes("Request failed with status code")) {
    message = "系统接口" + message.substr(message.length - 3) + "异常";
  }
  ElMessage({
    message: message,
    type: 'error',
    duration: 5 * 1000
  });
  return Promise.reject(error);
}
);

export default service;